We hadn't met for 20 years, but I recognized her_____ I saw her.
Many a teacher and many a student __________ it with __________ own eyes.
It is known to us all that the People's Republic of China __________ on October 1,1949.
I like getting up very early in summer. The morning air is so good __________.
We are now faced with a new problem involved in the popularity of private cars __________ road conditions need __________.
This coastal area __________ a national wildlife reserve last year.